Just by using this signal jammer the device signals can be easily blocked within its jamming range&period; Signal jammers are widely used in different places&comma; such as school&comma; university&comma; examination room&comma; gas station&comma; church&comma; court&comma; library&comma; meeting room&comma; government&comma; theater&comma; military area and so on&period;

With the help of signal jammers&comma; the cheating problems are solved&comma; which ensures the equity in exams&period; When they are applied in church&comma; court&comma; library&comma; meeting room&comma; theater&comma; they can prevent device from receiving signals&comma; which ensures absolutly silence&period;

The jamming distances mentioned on website are for customer's reference only&period; The actual jamming distance varied from the signal strength and the use location and if full charges&comma; etc&period;

Please note&colon;

Don't put the jammer in high voltage and high magnetism locations&period;

Do not use the jammer when it is charging&comma; or it will burn the jammer as it has no built-in fan&period; If because of this factor due to the broken of the jammer&comma; the customer will lose the authority of free repairation &period;